The Last Word

My LW and me would like a Gin & Tonic, thank you!

I think you mean MY LW...

You are both incorrect, my last word.

My sister always tries to get the last word...... and fails

Just like you.

And you...

Are still without it.

I'm definitely with it for sure.

You shouldn't be so sure about things.

The LW disagrees with you, as always